Yuav Ua Li Cas Rov Siv Tungsten Carbide

Tungsten carbide (WC) yog tshuaj binary compound ntawm tungsten thiab carbon nyob rau hauv stoichiometric piv ntawm 93.87% tungsten thiab 6.13% carbon. Txawm li cas los xij, industrially lub sij hawm feem ntau implies cemented tungsten carbides; sintered hmoov metallurgical khoom uas muaj cov nplej zoo heev ntawm cov ntshiab tungsten carbide khi los yog cemented ua ke nyob rau hauv ib tug cobalt matrix. Qhov loj ntawm tungsten carbide nplej yog li ntawm ½ txog 10 microns. Cov ntsiab lus cobalt tuaj yeem sib txawv ntawm 3 mus rau 30%, tab sis feem ntau yuav muaj li ntawm 5 mus rau 14%. Cov qoob loo loj thiab cov ntsiab lus cobalt txiav txim siab rau daim ntawv thov lossis siv qhov kawg ntawm cov khoom tiav.

Cemented carbide yog ib qho ntawm cov khoom muaj nqis tshaj plaws, cov khoom siv tungsten carbide feem ntau yog siv rau kev txiav thiab tsim cov cuab yeej, xyaum, abrasives, pob zeb, tuag, yob, riam phom thiab hnav cov ntaub ntawv surfacing. Tungsten carbide plays lub luag haujlwm tseem ceeb hauv kev txhim kho kev lag luam. Peb txhua tus paub tias tungsten yog ib yam khoom uas tsis tuaj yeem hloov dua tshiab. Cov cwj pwm no ua rau tungsten carbide seem ib qho ntawm cov kev sib tw zoo tshaj plaws rau kev rov ua dua tshiab.

Yuav ua li cas rov qab tungsten los ntawm tungsten carbide? Muaj peb txoj hauv kev hauv Suav teb.

Tam sim no, feem ntau yog peb hom cemented carbide recycling thiab regeneration txheej txheem feem ntau siv nyob rau hauv lub ntiaj teb no, nws yog zinc melting txoj kev, electro-dissolution method, thiab mechanical pulverization method.

1. Zinc melting txoj kev:

Txoj kev zinc melting yog ntxiv zinc ntawm qhov kub ntawm 900 ° C los tsim zinc-cobalt alloy ntawm cobalt thiab zinc hauv cov khib nyiab cemented carbide. Ntawm qhov kub thiab txias, zinc raug tshem tawm los ntawm lub tshuab nqus tsev distillation los ua ib daim txhuam cev zoo li hlau thaiv thiab tom qab ntawd crushed, batched, thiab hauv av rau hauv cov khoom siv raw hmoov. Thaum kawg, cov khoom cemented carbide tau npaj raws li cov txheej txheem pa. Txawm li cas los xij, txoj kev no muaj cov cuab yeej siv loj, cov nqi tsim khoom siab, thiab kev siv hluav taws xob, thiab nws yog ib qho nyuaj rau tshem tawm zinc, ua rau cov khoom tsis ruaj khov (kev ua tau zoo). Tsis tas li ntawd, siv cov zinc dispersant yog teeb meem rau tib neeg lub cev. Kuj tseem muaj teeb meem ua paug ib puag ncig siv txoj kev no.

2. Txoj kev daws teeb meem:

Cov txheej txheem electro-solution yog siv cov leaching tus neeg sawv cev tsim nyog los yaj cov binder hlau cobalt hauv cov khib nyiab cemented carbide rau hauv cov tshuaj leaching nyob rau hauv qhov kev txiav txim ntawm ib qho hluav taws xob teb thiab ces chemically txheej txheem rau hauv cobalt hmoov, uas yuav ces yaj. Cov khoom seem hlau nplaum ntawm lub binder yog ntxuav.

Tom qab crushing thiab sib tsoo, tungsten carbide hmoov yog tau, thiab thaum kawg, ib tug tshiab cemented carbide khoom yog ua raws li cov pa txheej txheem. Txawm hais tias txoj kev no muaj cov yam ntxwv ntawm cov hmoov zoo thiab cov ntsiab lus tsis zoo, nws muaj qhov tsis zoo ntawm cov txheej txheem ntev ntws, cov khoom siv electrolysis nyuaj, thiab kev ua haujlwm tsawg ntawm tungsten-cobalt khib nyiab cemented carbide nrog cobalt cov ntsiab lus ntau dua 8%.

3. Ib txwm siv tshuab crushing txoj kev:

Cov txheej txheem kev siv tshuab pulverization ib txwm yog kev sib xyaw ua ke ntawm phau ntawv thiab cov tshuab pulverization, thiab cov khib nyiab cemented carbide uas tau raug pulverized tau muab tso rau hauv cov phab ntsa sab hauv nrog cov cemented carbide hauv ob sab phlu thiab lub crusher nruab nrog loj-loj cemented carbide npas. Nws yog crushed rau hauv hmoov los ntawm dov thiab (dov) cuam tshuam, thiab tom qab ntawd ntub-hauv av rau hauv ib qho kev sib tov, thiab thaum kawg ua rau hauv cov khoom cemented carbide raws li cov txheej txheem pa. Cov txheej txheem no tau piav qhia hauv tsab xov xwm "Recycling, Regeneration, and Utilization of Waste Cemented Carbide". Txawm hais tias txoj kev no muaj qhov zoo ntawm cov txheej txheem luv luv thiab cov cuab yeej siv tsawg dua, nws yog ib qho yooj yim los sib tov lwm yam impurities hauv cov khoom, thiab cov pa oxygen ntawm cov khoom sib xyaw yog siab, uas muaj kev cuam tshuam loj heev rau cov khoom siv hlau zoo, thiab Tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov qauv tsim khoom, thiab ib txwm ua tau Ntxiv rau, qhov kev ua haujlwm crushing yog qhov tsawg heev, thiab feem ntau nws yuav siv li 500 xuab moos ntawm dov thiab sib tsoo, thiab feem ntau nyuaj rau kev ua tiav qhov yuav tsum tau ua kom zoo. Yog li ntawd, txoj kev kho dua tshiab tsis tau nrov thiab siv.

Yog tias koj xav paub ntau ntxiv txog abrasive blasting, txais tos hu rau peb kom paub ntau ntxivion.